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- Title
Formation of group 12 [Zn, Cd] mixed-chalcogen nanoparticles from the reagent Me<sub>3</sub>Si-SeS-SiMe<sub>3</sub>.
- Authors
Turner, Elizabeth A.; Rösner, Harald; Yining Huang; Corrigan, John F.
- Abstract
Mixed-chalcogen metal chalcogenide nanoparticles (MSexS1-x; M = Zn, Cd) have been synthesized using Me3Si-SeS-SiMe3 as a delivery source of Se2– and S2– to the metal core. This method demonstrates the ease with which mixed-chalcogen particles can be fabricated at low temperature using colloidal techniques. Reaction with Me3Si-SeS-SiMe3 occurs via a redox pathway resulting in Se–S bond cleavage and ultimately contributing to the nonequivalent Se:S ratio observed in the isolated particles. Subsequent thermolysis of ZnSe0.57S0.43 and CdSe0.28S0.72 in hexadecylamine gives rise to controlled particle growth while maintaining the observed stoichiometry. Particles are characterized by EDX, TEM, and powder X-ray diffraction analysis in conjunction with UV–vis absorption and photoluminescence (PL) spectroscopy.
- Subjects
CHALCOGENS; NANOPARTICLES; METALS; STOICHIOMETRY; PHOTOLUMINESCENCE
- Publication
Canadian Journal of Chemistry, 2007, Vol 85, Issue 10, p747
- ISSN
0008-4042
- Publication type
Article
- DOI
10.1139/V07-083